Bushing-remover



P. G. GULLY.

BUSHING REMOVER.

APPLlcAUoN FILED-'nmz 1920.

Patented Dec. 20, 1921.

PERRY G.

(ErlfLLY, OF ROSALIA, W'ASHINGTON.

nUsnine-nnnovnn.

Leconte.

Specification of Letters Patent.

Patented Dec. 2d, 1192i..

Application filed December 2, 1920. Serial No. 427,711.

To all whom t may concern.' Be 1t known that l, PERRY G. GULLr, a

citizen of the United States, residinoF at.

Rosalia, in the county of Whitman and totate of lVashington, have invented certain new and useful improvements in Bushing- Removers, of which the following is a speciication.

The present invention relates to improvements in bushing removers designed especially as a punch tool for removing bearing bushings from the bearing sleeves or hubs of spindles, as utilized in the Ford and other types of automobile gearing, and of course the device of the invention is adapted for similar use in other connections for removing bushings from the tubular structures containing them.

In applying the bushings to the spindle bearing hub or sleeve, the former, which are usually of bronze or steel, are driven or forced into the spindle bearing, and are firmly retained therein. When the bushings become worn, the necessity arises for removing them to be replaced by others, and the tool of the present invention is designed for facile introduction into the spindle bearing, from alternate ends, where it is adapted to engage the inner edge of end of the bushing. and by tapping on the outer end or" the tool, the bushing may be forced from the spindle bearino'.

WV ith the above purpose in view the invention consists essentially in a sectional tool having certain novel complementary features for engagement one with another and with the edges of the bushings, and in novel combinations and arrangements of parts as will be hereinafter more fully described and claimed.

ln the accompanying drawings one complete example of the physical embodiment of the invention is illustrated, the parts being combined and arranged according to the best mode thus far devised for the practical application of the principles of the invention.

Figure lis a vertical central sectional view through a spindle bearing hub or sleeve, showing the tool of the invention in position to drive out the lower bushing of the bearing sleeve, parts of the tool being broken away for convenience of illust-ration.

Figs. 2 and 3 are views in elevation, taken at right angles, of the driven bar or section of the tool. Figs. a2 and 5 are similar, con

plementary views, of the driving or punching section of the tool. Y

ln` the preferred embodiment of' the invention as illustrated in the drawings l have shown a spindle bearing hub or sleeve l of well known type with the upper and lower complementary bushings 2 and 3 as bearings for the spindle not shown.

lhe tool comprises a driving shank #l of suitable metal and of proper diameter for facile insertion into the bushings 2 and 3 and is equipped with a head 5 which may be tapped with a hammer or other device. The end of the shank is fashioned with a beveled face 6, and terminates in a reduced extension 7, which construction forms an annular abrupt shoulder 8 on the shank opposite to the beveled face, while the beveled face 6 at its juncture with the shank is also formed with a shoulder 8.

The driven ybar 9 forming the tool end section is approximately the same diameter as the shank a. and at one end is provided with a beveled face l() extending obliquely` thereof and complementary to the beveled face 6 of the driving shank, these two faces being designed to co-act as will be described. rthe bar 9 is fashioned with a head ll created or formed by cutting out or grooving the bar at l2, which groove extends longitudinally along the exterior of the bar a suflicient distance for the purpose, and terminates in an abrupt shoulder 13 extending annularly apliironimately one half the circumference of the bar. A'

The utility and operation of the tool will be apparent from an inspection and study of Fig. l wherein the parts are in position for use in removing the lower bushing 3 from the spindle hub l. rl`he bar 9 has been inserted up into the bushing from below, and the shank has been introduced from above, through the bushing 2 and down into the spindle hub, the bar and shank being of such diameter as to permit ready insertion. Ilhe complementary beveled faces are brought into close contact with the shoulder 8 in contact with the end of the head ll, while the shoulder 8 of the shank 4is in contact with the inner edge of the bushing 3. The bar 9 has been inserted through the bushing a suiiicient distance to permit the shoulder 13 to rest upon the edge of the bushing, and the two shoulders 8 and 13 thus form a continuous annular shoulder bearing against the inner ics i edge of the'bushing, while the barand shank, and especially the shank, are free to pass through the spindle hub. Nowby tapping or hammer blows onthe head' of the driving shank it will be apparent that the two beveled edges or faces are driven into close frictional contact, and the impact applied to the tool vis transferred to the inner edge of the bushing through the annular shoulders Sand 13. The continued tapping or hammer blows will drive the bushing out through the lower end of the hub, thus freeing the bushing, and asthe end of the shank andthe bar 9 pass out at lthe lower end of the bushing, the shank and bar fall apart, after which the 'shank may be withdrawn through the upper open end of the hub and its bushing 2.

The bushing 2 may be removed; in the same manner7 but the sections of the tool are introduced into the spindle hub from opposite ends than those illustrated in Fig. l. By the same operation, the upper -bushing may be removed, the hammer blows being applied from below.l The terms upperrrand lower as here used are' relative terms, as it will be apparent thatthe tool maybe used in connection with hubs located Vin horizontal position, or with other tubular structures from which a bushing is to beV removed. v Y Y y n From the above description taken in con- Vnection with the drawings it is apparent that the tool may be manipulated with falaoove cility, and that the bushings may be quickly and convenientlyremoved without danger of marring the hub,` and that the device possesses meritorious features rendering it a desirable instrumentality for performing its required functions.V

Claims: Y

l. In a bushing remover the combination of a driving shank and a driven bar having complementary co-acting beveled friction faces and coacting shoulders on said shank and bar forming a continuous annular bear-k ing for engagement with the edge of a bushing as described. Y 'l 2. In a bushing remover the combination of a driving shank' and a driven bar having complementary beveled friction faces, co-

acting shoulders on said shank and barfor engagement with the edge of a bushing, a head on said beveled bar anda shoulder on the shankfor engagement withsaid head for the-purpose described. v

3. In a device as described fthe combination of a driving shank and a driven-bar having co-acting engaging means, co-acting shoulders on said shank and barrforming a continuous bearing for the edge of abushing, a head on the bar and a shoulder `on the shank coacting therewith, and-said bar having an exterior groove for the purpose described. Y Y

In testimony whereof I aiX my signature.

PERRY e. GULLY. 

